Due to the cratering process itself and due to postimpact modification.
Famous flat floored craters.
Simple craters are 10 miles in diameter or less.
Partially surrounding the bay is a ridge up to 100 m above the lake with a maximum diameter of 13 km which probably represents the outer rim of the crater.
This is generally a splash effect caused by the kinetic energy of the impacting object being turned to heat and melting some lunar material.
The flat portion of the floor may occur at the crater center or occur as an annulus around a central uplift synonymsflat floored impact craterdescriptionimpact craters can have a variable floor.
Such postimpact modification can include regolith transported down the crater walls and onto the floor infilling by aeolian or lacustrine material or infilling by lava unrelated to the impact process e g plato flooding of the crater by lavas e g schultz 1976a.
Over the next 300 000 years the wind gradually filled it with sand and today the crater floor is 60 meters 200 feet below the rim which rises 25 meters above the surrounding flat desert land.
The deep bay flat floored crater is a nearly circular lake near the south end of reindeer lake.
Topographic geological and geophysical evidence suggest that the structure of deep bay in.
Flat floored craters occur in complex craters or highly degraded or modified simple craters.
Ptolemaeus is the large diameter 164 km flat floored crater at the top.
Lalande a only 8 mi.
The crater that was left was probably about 120 meters deep.
The wind gradually filled it with sand over the next 300 000 years and today the crater floor is 60 meters 200 feet below the rim which rises 25 meters above the surrounding flat desert land.
Such flat floors extend across the entire reach of the crater bottom or can be interrupted at the center by a central peak or peak ring.
They start with rounded floors then progress to a flat floor resulting from a cascade of boulders that have rolled down the interior walls and settled at the bottom.
Crater floor a more or less smooth flat area which as it ages accumulates small craters of its own central peak found only in some craters with a diameter exceeding 26 kilometres 16 mi.
Lofn is a large relatively young impact crater on jupiter s galilean satellite callisto it was identified in 1997 and named after the goddess of marriage in norse mythology located near the south pole of this moon lofn is classified as a flat floored or anomalous dome impact crater it is superimposed on adlinda multilayer structure obscuring about 30 of it.
This crater is named the wolfe creek crater and it is located in australia.
In diameter located about 40 miles southwest of the crater lalande is a good example of a simple crater.
The crater that was left by the meteorite was probably about 120 meters deep.
Small numbers of iron meteorites have been found in the vicinity of the crater.
Flat floored craters occur for two reasons.